I am now releasing my Woppinator and Tilinator tools as open source!
The pre-compiled binaries are released as installers so that they can associate the *.wop and *.tp1 files with these new programs automatically (including icons for the file types which can't be done manually without regedit afaik).
Woppinator
Woppinator is a tool to edit Wonderland Object Preset (*.wop) files and is a vast improvement over PowerWop.
Tilinator
Tilinator is a tool to edit Wonderland Tile Preset (*.tp1) files and is currently the only tool for the job.
Source Code
You can access the source code here:
Woppinator - https://github.com/HumanGamer/Woppinator
Tilinator - https://github.com/HumanGamer/Tilinator
Download
For pre-compiled binaries that are ready to install you can go here:
Woppinator - https://github.com/HumanGamer/Woppinator/releases
Tilinator - https://github.com/HumanGamer/Tilinator/releases
Requirements
Requires .NET Framework 4.5.2 or higher.
Enjoy!